using << operater

registrar_test.sh

-#!/bin/bash
+#!/bin/sh
 product_list_file=$1
 
 docker exec -i $(docker ps -qf "name=emg-pvs_registrar") python3 /var/www/pvs/dev/pvs_instance/manage.py storage create pvs_testing pvs_testing --type swift --storage-auth auth-cloud-ovh
@@ -6,7 +6,7 @@ docker exec -i $(docker ps -qf "name=emg-pvs_registrar") python3 /var/www/pvs/de
 IFS=","
 while read  product; do  
 
-    docker exec -i $(docker ps -qf "name=emg-pvs_registrar") python3 /core/registrar.py --objects-prefix $product <<<$product
+    docker exec -i $(docker ps -qf "name=emg-pvs_registrar") python3 /core/registrar.py --objects-prefix $product <<$product
     
 done < $product_list_file